How To Flash A Roof Curb

Instead coordinating the curb size with the rib spacing to provide a rib to rib curb eliminates fasteners down both sides of the curb in the pan of the roof panels.

How to flash a roof curb.

These flashings are easily welded to the installed membrane and the combination of reinforced membrane and prefabrication ensures a long lasting watertight flashing. The roof components first the basic design of the curb should take into account the roofing components so that it can be properly flashed into the roof system. Place skylight dome on the curb and secure with proper fasteners. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.

Be sure to lace the step flashing with the course of shingles. Install ice water shield peel stick underlayment down the curb onto the roof deck. Install top flashing step flashings properly sized for the shingle and bottom flashing. Fasten loose nails and cover exposed nail heads with roofing cement.

Place step flashing along the sides of the curb under the shingles. Placing the curb on and attaching it to the ribs also allows better transitioning from under the roofing on the upslope end to cover the roof on the downslope end. Milcor s roof penetration products like its heat and smoke vents are prefabricated with roof curbs and flashing for an all in one solution. Roofing cement can dry out and crumble away exposing joints to water.

Installing a curb mount skylight step by step from start to finish. Duro last prefabricated curb flashings are designed for roof penetrations.